gli antagonist 1

HPI 1 is a hedgehog (Hh) signaling inhibitor. Inhibits Sonic hedgehog (Shh)-, SAG- and Gli-induced Hh pathway activation in Shh-LIGHT2 cells (IC50 values are 1.5, 1.5, 4, and 6 μM for Shh-, SAG-, Gli2- and Gli1-induced activation).

HPI-1 (hydrate) is a Hedgehog (Hh) pathway inhibitor that suppresses signaling through Sonic Hh (IC50= 1.5 μM) without significantly affecting Wnt signaling (IC50≥ 30 μM).1HPI-1 suppresses Hh activation induced by loss of Suppressor of Fused or by Gli overexpression, suggesting action at posttranslational modification of Gli protein or at the interaction of Gli with a co-factor.1HPI-1 (hydrate) also inhibits signaling through the oncogenic Smoothened (Smo) mutant SmoM2 in neuron precursors, preventing cell proliferation.1 1.Hyman, J.M., Firestone, A.J., Heine, V.M., et al.Small-molecule inhibitors reveal multiple strategies for Hedgehog pathway blockadeProceedings of the National Academy of Sciences of the United States of America106(33)14132-14137(2009)

HPi1 is a selective and orally active antimicrobial against Helicobacter pylori (IC50: 0.24 μM and a MIC of 0.08-0.16 μg/mL). HPi1 is inactive against other Xaliproden, including the gut commensals, Lactobacillus reuteri, Lactobacillus casei, and Bifidoba